Search for Neutrinos in Super-Kamiokande Associated with the GW170817 Neutron-star Merger



Abe, K, Bronner, C, Hayato, Y, Ikeda, M, Iyogi, K, Kameda, J, Kato, Y, Kishimoto, Y, Marti, Ll, Miura, M
et al (show 153 more authors) (2018) Search for Neutrinos in Super-Kamiokande Associated with the GW170817 Neutron-star Merger ASTROPHYSICAL JOURNAL LETTERS, 857 (1). l4-. ISSN 2041-8205, 2041-8213

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Abstract

We report the results of a neutrino search in Super-Kamiokande (SK) for coincident signals with the first detected gravitational wave (GW) produced by a binary neutron-star merger, GW170817, which was followed by a short gamma-ray burst, GRB170817A, and a kilonova/macronova. We searched for coincident neutrino events in the range from 3.5 MeV to ∼100 PeV, in a time window ±500 s around the gravitational wave detection time, as well as during a 14-day period after the detection. No significant neutrino signal was observed for either time window. We calculated 90% confidence level upper limits on the neutrino fluence for GW170817. From the upward-going-muon events in the energy region above 1.6 GeV, the neutrino fluence limit is () cm-2 for muon neutrinos (muon antineutrinos), with an error range of ±5around the zenith angle of NGC4993, and the energy spectrum is under the assumption of an index of-2. The fluence limit for neutrino energies less than 100 MeV, for which the emission mechanism would be different than for higher-energy neutrinos, is also calculated. It is 6.6 × 107 cm-2 for anti-electron neutrinos under the assumption of a Fermi-Dirac spectrum with average energy of 20 MeV.

Item Type: Article
Additional Information: 8 pages, 4 figures
Uncontrolled Keywords: astroparticle physics, gravitational waves, neutrinos
Depositing User: Symplectic Admin
Date Deposited: 25 Jun 2018 06:31
Last Modified: 16 Jun 2026 11:50
DOI: 10.3847/2041-8213/aabaca
Open Access URL: http://iopscience.iop.org/article/10.3847/2041-821...
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3022999
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